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March Weather in Port Allen, United States

Last updated: June 24, 2025

In March, the average temperature in Port Allen, United States hovers around 18°C (64°F), creating a comfortable climate. However, temperatures can fluctuate, with minimums dipping to -1°C (30°F) and maximums soaring to 30°C (87°F). During this time, expect approximately 83 mm (3.3 in) of precipitation spread over 11 days, contributing to a humid atmosphere with an average humidity of 80%.

March Temperature in Port Allen

In March in Port Allen, the average temperature is 18°C (64°F). The maximum can reach 30°C (87°F), while the minimum can drop as low as -1°C (30°F). This varied climate makes Port Allen an ideal destination for travelers seeking diverse weather experiences.

March Weather in Port Allen: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Port Allen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Port Allen, March typically has an average temperature of 18°C (64°F), with highs reaching up to 30°C (87°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec525864687680828179725956
Data source: Temperature data for Port Allen generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Port Allen

In Port Allen in March, the precipitation amount is 83 mm (3.3 in) over the course of 11 days.

March Precipitation Trends in Port Allen

The chart displays monthly precipitation patterns in Port Allen, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Port Allen, March typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec1091148315014617318415413511185117
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Port Allen

In Port Allen in March humidity is 80%. With an average temperature of 18°C (64°F), this humidity feels like a warm, damp blanket wrapping around you, making travel a bit more exhausting as the air thickens and the heat clings to your skin.

March Average Humidity in Port Allen

This chart illustrates the average monthly humidity levels in Port Allen, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Port Allen is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%83%80%81%81%78%79%79%79%77%85%88%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Port Allen

In Port Allen in March, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Port Allen.

Maximum UV Index Levels in Port Allen for March

The chart shows the monthly maximum UV Index (UVI) for Port Allen in March, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In March, the maximum UV index in Port Allen typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111112121110965
Data source: Port Allen March UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How March Weather in Port Allen Compares to Other Months

Weather in Port Allen varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Port Allen, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Port Allen, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (53°F)109 mm (4.3 inches)83%moderate
February Weather14°C (58°F)114 mm (4.5 inches)83%very high
March Weather18°C (64°F)83 mm (3.3 inches)80%very high
April Weather20°C (68°F)150 mm (5.9 inches)81%extreme
May Weather24°C (76°F)146 mm (5.7 inches)81%extreme
June Weather27°C (81°F)173 mm (6.8 inches)78%extreme
July Weather28°C (82°F)184 mm (7.2 inches)79%extreme
August Weather27°C (82°F)154 mm (6.1 inches)79%extreme
September Weather26°C (79°F)135 mm (5.3 inches)79%very high
October Weather22°C (72°F)111 mm (4.4 inches)77%very high
November Weather15°C (59°F)84 mm (3.3 inches)85%high
December Weather13°C (56°F)117 mm (4.6 inches)88%moderate

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